Spectra of accreting X-ray pulsars |
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Authors: | J Ventura |
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Institution: | Max-Planck-Institut für Physik und Astrophysik, Institut für Extraterrestrische Physik, 8046 Garching, FRG |
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Abstract: | Using recent improved results on the frequency and polarization dependent opacities in a strong magnetic field we examine the physics of the lower accretion column on a magnetic neutron star to determine the spectrum radiated at infinity. We argue that photon convection by the fast infalling material (free fall velocities c/2) should substantially modify the spectrum radiated through the accretion column due to the frequency dependence of the opacity. |
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